Adjustable floating-reamer holder.



R. RAILTON. ADJUSTABLE FLUATING BEAMER HOLDER. APPLICATION man ocT. 18. |916.

l l Patented Apr. 10,1917.

WITNESSES .anon.

narrar aarn'ron, or vanter raalte,l nnonn leraren.

i 'UBTBLE FLOATING-REAMEB HOLDER peclcation of Letters Eatent. Pgtgjmtqjj Apr, 11(1)), 19115?,

Application filed october 19, 1916. teria11to. 126,251.

Reamer Holder, of which the following is a.

full, clear, andaexact description.

My invention relates to floating reamers and has for its purpose. to provide adjust ments of the reamer holder which together with the floating of the reamer will enable accurate reaming to be attained.

The nature of the invention will clearly` appear as the description proceeds.

Reference is to lie had to the accompanyance with the illustrated example, a reamer support 10 is provided with a bore 11 to recelve the shank 12 of a reamer 13. A transverse pin 111 is passed through the shank 12 and through pin holes 15 in the sides of the holder 16.

The relation between the bore 11 and the L shank 12 issuch that vthe shank will t snugly in the bore 'at the -rear end but will have clearance for a limited floating action forward of the rear end. In the illustrated example this is e'ected by tapering the shank 12.

ing the vdevice in a turret. To clamp the The support 10 is "formed with a Harige-16 which is secured to a ball Hangs 17 in a manner to permit of said support being variously adjusted on the faceof the-flange 17 in a plane parallel with said face. For the purpose machine screws 18 are employed preferably three in number which pa'ss'throul h holes 19 in the ange 16 and take into t e flange 17, said holes 19 being suciently larger than the screws 18 to permit of the flange 16 being adjusted in various directions over the face of the flange 17.

The ball 20 of the ball Harige 17 isreceived in a socket 21 having a shank 22 for securball 20 in adjusted positiomthe socket includes a clamp 23, and the socket 21 and clamp 23 are formed with lateral flanges 2d,

25.to receive fastening screws 26.

To set the holder in line with the hole to be roamed, the piece of work is placed in the chuck, a hole is then bored, say one-inch in diameter true with the axis of the spindle, a plug one inch in diameter is then inserted in the hole and having sufficient length to project beyond the piece of work sufficiently to enter the bore 11 of the reamer support. The holder. is now fixed in the turret, all screws in the holder being loosened, and the turret is brought up to the plug so that the reamer support'will slip on the plug. The screws 18 are now partially tightened, after which the screws 26 are fully tightened to rigidly bind the vball 20. The holder is now perfectly in line with the hole to be roamed and the reamer is placed in the holder, the

pin 11 is passed through the holder and the shank 12 of the reameryand the plug removed from thek piece of work.

.The new construction edectively provides against the dropping of the spindle out of line with the turret. lt also provides against the wear of the turret slide sidewise and at the bottom. The holes in the turret tend to become taperedethat is, larger at the front end thereof, through wear; this device through the ball and socket arrangement overcomes this tendency.

Having thus described my invention, l claim 'as new, and desire to secure by Letters Patent:

1. A reamer and reamer holder including a reamerV support having a bore for the 'reamer shank, a reamer having a shank htreamer shank, 'a reamer having a shank tting saidbore snugly at the rear end and having lclearance forward of said reanend for floating movement in the holdena transverse pin extending through the said holder 2. A reamer and reamer holder includingv a reamer support havmg a bore to receive a and reamer shank, a ball ange on the face of Awhich the said support is variously adjustable in a plane parallel with said face, a socket element receiving said ball and havin means to secure the same in a turret, sai socket including a ball clamp adapted to ri idly clamp the ball of said'ball ange in ajusted position.

3. A reamer holder including a reamer support having a bore adaptedto receive 'the shank of a reamer, a ball ange on the face of which the support is variously adjustable in a plane parallel with the said face, and a socket element receiving said ball and hav-V 1n said socket including a ballJ clam adapted in a Justed position.

. .4. A ramer holder including a ramer means to secure the same in a turret,.

to rigidly clamp the ball of 4said all flange l holder adapted to secure the reamer lshank thereto, a ball flange on the face' of which l the support is variously adjustable in a plane parallel with said face, and a socket element receivingsaid ball and having means to secure the same in a turret, said socket inv cluding a ball clamp 'adapted to rigidly clamp the ball of said ballilange in adange for. variously adjusting the same in a- ',plane parallel with said face, means to secure the holder in a `turret,'e1ements forming a universal connection between said flange and said last-mentioned means, and means to prevent movement of the said universal elements to hold the same in a given adjustment. e l

ROBERT RAILTON. 

